Anisotropic tissue elasticity in human lumbar vertebra, by means of a coupled ultrasound-micromechanics approach
Visualitza/Obre
Article Complert (323,4Kb) (Accés restringit)
Sol·licita una còpia a l'autor
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
10.1016/j.matlet.2012.03.052
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/18524
Tipus de documentArticle
Data publicació2012-07-01
Condicions d'accésAccés restringit per política de l'editorial
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The extremely
fi
ne structure of vertebral cortex challenges reliable determination of the tissue's anisotropic
elasticity, which is important for the spine's load carrying patterns often causing pain in patients. As a potential
remedy, we here propose a combined experimental (ultrasonic) and modeling (micromechanics) approach.
Longitudinalacousticwavesaresentinlongitudinal(superior
-inferior,axial)aswellastransverse(circumferential)
direction through millimeter-sized samples containing thi
s vertebral cortex, and corr
esponding wave velocities
agree very well with recently identi
fi
ed
‘
universal
’
compositional and acoustic characteristics (J Theor Biol
287:115,2011),whicharevalidforalargedatabasecomprisingdifferent bonesfromdifferent speciesanddifferent
organs. This provides evidence that the
‘
universal
’
organization patterns inherent to all the bone tissues of the
aforementioned data base also hold for vertebral bone. Con
sequently, an experimentally validated model covering
the mechanical effects of this organization patterns (J Theor Biol 244:597, 2007, J Theor Biol 260:230, 2009) gives
access to the complete elasticity tensor of human lumbar ve
rtebral bone tissue, as a valuable input for structural
analyses aiming at patient-speci
fi
cfractureriskassessm
ent, e.g. based on the Finite Element Method.
CitacióMalandrino, A. [et al.]. Anisotropic tissue elasticity in human lumbar vertebra, by means of a coupled ultrasound-micromechanics approach. "Materials letters", 01 Juliol 2012, vol. 78, p. 154-158.
ISSN0167-577X
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Malandrino, 2012.pdf | Article Complert | 323,4Kb | Accés restringit |